Beijing Haihua Boyuan Science and Technology Development Co. Ltd

Beijing, China

We are offering hot sale test-board(pcb) for stepper motor driver ic. terminal instructionssignal interface for the signal-input control*cp+:the positive of the pulse signal input interface*cp-:the negative of the pulse signal input interface*u/d+:the positive of the motor' positive/reversal rotation control interface*u/d-:the negative of the motor' positive/reversal rotation control interface*free+:the positive of the motor' offline control interface*free-:the negative of the motor' offline control interface the connection of the motor' winding *out1a:connect the a phase of the motor' winding*out2a:connect the a- phase of the motor' winding*out1b:connect the b phase of the motor winding*out2b:connect the b- phase of the motor winding the connection of the operation voltage*vm:positive for the connection of the dc power*gnd:negative for the connection of the dc power input signal interfaceinput signals are consistent with three lines: (1) stepping pulse signals of cp+ and cp-; (2) direction electric-level signal of u/d+ and u/d-; (3) offline signals of free+ and free-. They have the same interface circuits in the motor (see input signal interface schematic) and they are independent with each other the feature of the input signal interface is that it can be connected with shared positive or shared negative according to users need. shared positive connection: connect the cp+, u/d+ and free+ separately to the power that control the system. If the current level is just 5v, it can be connected directly. However, if the current is above 5v, there will a current limiting resistor needed outside the motor so as to supply a sustained drive current between 8 -15ma for the optical coupling inside the motor. Add the input signals through cp- while the u/d- and free- is performing at the moment at low electric level. shared negative connection: connect the cp-, u/d- and free- separately to the ground interface of the control system (sgnd, isolated from the power ground), the +5v input signals will be added by cp+, while this moment u/d+ and free+ is performing at a high electric level. The interpretation of the current limiting resistor is as the same of the shared positive connection. the setting of the micro-stepping numberyou can use the dial-turntable switch on the motor to set the micro-stepping number, just follow the setting instructions on the subdivision table. Please as far as possible to use high subdivision under the load of the systems frequency. After that, you can calculate the stepping the stepping motors step angle as follows: step angle=motors constant step angle/micro-stepping number. For example 1.8/40=0.045m3 m2 m1 subdivision on on on 1 on on off 2 on off on 4 on off off 8 off on on 16 off on off 32 off off on 64 off off off 128 the setting of the motors phase currentthe phase current is set by the motors potentiometer; so as to make the motors output current is accordance with motors phase current. The limited max current for the motor is 2.8a.

We are offering hot sale test-board (pcb) for stepper motor driver ic thb6128. terminal instructionssignal interface for the signal-input control(1)cp+: the positive of the pulse signal input interface(2)cp-: the negative of the pulse signal input interface(3)u/d+: the positive of the motor' positive/reversal rotation control interface(4)u/d-: the negative of the motor' positive/reversal rotation control interface(5)free+: the positive of the motor' offline control interface(6)free-: the negative of the motor' offline control interfacethe connection of the motor' winding (1)out2b: connect the b phase of the motor' winding(2)out1b: connect the b- phase of the motor' winding(3)out2a: connect the a phase of the motor' winding(4)out1a: connect the a- phase of the motor windingthe connection of the operation voltage(1)vm: positive for the connection of the dc power(2)gnd: negative for the connection of the dc powerinput signal interfaceinput signals are consistent with three lines: (1) stepping pulse signals of cp+ and cp-; (2) direction electric-level signal of u/d+ and u/d-; (3) offline signals of free+ and free-. They have the same interface circuits in the motor (see input signal interface schematic) and independent with each other. the feature of the input signal interface is that it can be connected with shared positive or shared negative according to users need. shared positive connection: connect the cp+, u/d+ and free+ separately to the power that control the system. If the current level is just 5v, it can be connected directly. However, if the current is above 5v, there will a current limiting resistor needed outside the motor so as to supply a sustained drive current between 8 15ma for the optical coupling inside the motor. Add the input signals through cp- while the u/d- and free- is performing at the moment at a low electric level. shared negative connection: connect the cp-, u/d- and free- separately to the ground interface of the control system (sgnd, isolated from the power ground), the +5v input signals will be added by cp+, while this moment u/d+ and free+ is performing at a high electric level. The interpretation of the current limiting resistor is as the same of the shared positive connection. the setting of the micro-stepping numberyou can use the dial-turntable switch on the motor to set the micro-stepping number, just follow the setting instructions on the subdivision table. Please as far as possible to use high subdivision under the load of the systems frequency. After that, you can calculate the stepping the stepping motors step angle as follows: step angle=motors constant step angle/micro-stepping number. For example 1.8/40=0.0451, 2, 3on=0, off=1 000 001 010 011 100 101 110 111 subdivision 1 2 4 8 16 32 64 128 the setting of the motors phase currentthe phase current is set by the motors potentiometers(vref), so as to make the motors output current is accordance with motors phase current. The limited max current for the motor is 2 a. the setting of the current attenuation methodaccording to the input voltage of fdt terminal, the fast-decay mode, slow-decay mode or mixed-decay mode can be set up. fdt voltage decay method above 3.5v slow decay 1.1v-3.1v or open mixed decay 0-0.8v fast decay.